
public class TestChange {
	
	public static void main(String[] args)
	{
		String a = "aaaaaa";
		change(a);
		System.out.println("outer: "+ a);
		
	}
	public static void change(String a)
	{    
		System.out.println("inner before: "+ a);
		a = "bbbbb";
		System.out.println("inner after: "+ a);
		
	}

}
